lolWhat are factory specs on ride height for front and rear, ground to highest fender arch, for the 2009 XLT?
I have 33" rear height as well, but car feels 'sunken' lately and I suspect a broken seat cushion element. The passenger seat feels correct, but driver's seat feels like sitting on a sponge. There's also a grating squeak on one side of the cushion.damn close to 33" rear, with about 100 pounds of junk in the trunk, 1/2 tank gas.
I put in KYB premium cargo shocks to replace aging Ford shocks. Right away, the car seemed to 'mush out' intermittently from what feels like the left rear quarter. The car feels like it sinks not long after it starts moving. Today I stopped ASAP and measured. 33" left and 34" right. The left rear was sagging visually.I measured 31.5 front 32.75 rear on my 2010 this AM.
If it's ride quality, never seen ride height/springs as an issue - lots of struts/shocks.
I would say clean your throttlebody, make sure you use special throttlebody cleaner… Not carburetor cleaner.This is nutty, but: on a 5/8 tank of gas, the car runs and handles like a champ. I made this connection tonight. At 5/8 tank, the rear end leveled out. It seems the left rear spring doesn't like a full tank.
Above 3/4 tankful, my '09 sags and slugs. Suspension and driveline stressed; and engine seems reluctant. On 7/8 tank, you can feel the car lean and sit down at the rear left while in motion. AT shifts seem harder as well.
Burn off gas to 60% and it's nimble again. So how about this deductive and additive reasoning:
Nearly-full fuel tank contents sloshing around
plus gas is more dense in cold weather
plus gas tank set left of centreline and to rear
plus driver set left of centreline
plus aging front and rear springs
Also, my street parking involves upslopes, downslopes, and level spots. Leave the car 24 hours in any one of these and you come back to a vehicle with a different 'set'. Probably those aging springs again.
Now. Engine. Why does a full tank of cold gas make the engine unhappy? Extra work to atomize cold and viscous fuel at the injectors? Or is this an early evap valve-canister issue?
Yes, was going to see about having TB serviced. As for rear springs, what's your view on Moogs? I can't find Motorcraft springs specific to my VIN--just a weird substitute part number that no Ford parts counter can identify and so won't recommend. The original springs are 'discontinued'.I would say clean your throttlebody, make sure you use special throttlebody cleaner… Not carburetor cleaner.
They gum up, and in the winter they get sticky.
I replaced my oe at 170,000 miles, after two cleanings...
takes less than an hour in the driveway.
if you don't have quality gasoline where you live, I would strongly suggest running a can of BG 44K through your fuel system once a year.
moog has been around a long time, I am sure there is a reason. ( :Yes, was going to see about having TB serviced. As for rear springs, what's your view on Moogs? I can't find Motorcraft springs specific to my VIN--just a weird substitute part number that no Ford parts counter can identify and so won't recommend. The original springs are 'discontinued'.